判断某一年是否是闰年

#include
using namespace std;
int main()
{
int iYear;
cout << “请输入年份” << endl;
cin >> iYear;
if(iYear%40)
{
if(iYear%1000)
{
if(iYear%400==0)
cout << “” << endl;
else
cout << “” << endl;
}
else
cout << “这是个闰年” << endl;
}
else
cout << “这不是个闰年” << endl;
}